/* ============================================================
   Sapiency × Claude — showcase index.
   Light editorial hub; each card carries its site's theme.
   ============================================================ */

:root {
  --purple-900: #2E1A34;
  --purple-800: #472850;
  --purple-700: #5E3568;
  --purple: #7A4686;
  --purple-300: #B08CB8;
  --purple-200: #D3BFD8;
  --purple-100: #EFE7F1;
  --gold-800: #86642F;
  --gold-700: #A87E3F;
  --gold: #C69A58;
  --gold-300: #DDC194;
  --indigo: #3D417B;
  --indigo-soft: #E9EAF4;
  --teal: #478D9A;
  --plum: #593640;
  --mauve: #9A6B7E;
  --mauve-light: #C9A9B5;
  --mauve-wash: #F6F0F2;
  --ink: #201826;
  --ink-deep: #17111C;
  --slate: #5B5560;
  --line: #E7E2EA;
  --wash: #F3EFF5;
  --surface: #FAF9FB;
  --white: #FFFFFF;

  --font-display: "Ubuntu", "Segoe UI", system-ui, sans-serif;
  --font-mono: "Ubuntu Mono", Consolas, monospace;
  --font-body: "Mulish", system-ui, sans-serif;

  --shadow-md: 0 8px 24px rgba(32,24,38,.08);
  --shadow-lg: 0 20px 56px rgba(32,24,38,.16);
  --ease-out: cubic-bezier(.22, 1, .36, 1);
  --container: 1140px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--purple-200); color: var(--purple-900); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 clamp(20px, 4vw, 44px); }

a { color: var(--purple); }
.mono { font-family: var(--font-mono); font-size: .94em; background: var(--purple-100); padding: 1px 6px; border-radius: 4px; color: var(--purple-800); }

/* ---------- hero ---------- */
.hero {
  padding: clamp(70px, 9vw, 120px) 0 clamp(40px, 5vw, 64px);
  background:
    radial-gradient(ellipse 60% 50% at 90% 0%, var(--purple-100), transparent 60%),
    radial-gradient(ellipse 40% 40% at 5% 20%, var(--mauve-wash), transparent 60%),
    var(--surface);
}
.hero-logo { height: 40px; width: auto; margin-bottom: 40px; }
.hero h1 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(40px, 6.4vw, 72px);
  line-height: 1.02; letter-spacing: -0.02em;
  color: var(--purple-900);
  margin: 0 0 26px;
}
.gold-line { position: relative; color: var(--purple); }
.gold-line::after {
  content: ""; position: absolute; left: 0; bottom: 2px;
  width: 100%; height: 4px; border-radius: 2px;
  background: var(--gold);
  transform-origin: 0 50%;
  animation: rule-in .8s var(--ease-out) .5s both;
}
@keyframes rule-in { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.hero-sub { color: var(--slate); max-width: 66ch; font-size: 17.5px; }
.hero-sub strong { color: var(--purple-900); }
.hero-meta { font-size: 14px; color: var(--slate); margin-top: 26px; }

/* ---------- site cards ---------- */
.sites { padding: clamp(30px, 4vw, 56px) 0 clamp(60px, 7vw, 100px); }
.site-card {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--white);
  padding: clamp(22px, 3vw, 36px);
  margin-bottom: 22px;
  transition: transform .35s var(--ease-out), box-shadow .35s, border-color .35s;
  position: relative;
  overflow: hidden;
}
.site-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.sc-visual {
  border-radius: 14px;
  height: 210px;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.sc-svg { width: 100%; height: 100%; }

.theme-practice .sc-visual { background: linear-gradient(135deg, var(--purple-100), var(--white)); }
.theme-ledger .sc-visual { background: linear-gradient(135deg, var(--ink-deep), var(--purple-900)); }
.theme-instrument .sc-visual { background: linear-gradient(135deg, var(--indigo-soft), var(--white)); }
.theme-library .sc-visual { background: linear-gradient(135deg, var(--mauve-wash), var(--white)); }
.theme-atelier .sc-visual { background: radial-gradient(ellipse at 50% 40%, #241A2E, var(--ink-deep)); }

.theme-practice:hover { border-color: var(--purple-300); }
.theme-ledger:hover { border-color: var(--gold); }
.theme-instrument:hover { border-color: var(--indigo); }
.theme-library:hover { border-color: var(--mauve-light); }
.theme-atelier:hover { border-color: var(--plum); }

.sc-no {
  font-family: var(--font-mono); font-size: 12px; font-weight: 700;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--gold-800); margin: 0 0 8px;
}
.sc-body h2 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(24px, 3vw, 32px); letter-spacing: -0.015em;
  color: var(--purple-900); margin: 0 0 10px;
}
.sc-desc { color: var(--slate); font-size: 15.5px; max-width: 60ch; margin: 0 0 16px; }
.sc-tags { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 18px; }
.sc-tags span {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em;
  color: var(--purple-800); background: var(--purple-100);
  padding: 4px 10px; border-radius: 100px;
}
.sc-cta {
  font-size: 14px; font-weight: 800; color: var(--purple);
  position: relative; display: inline-block;
}
.sc-cta::after {
  content: "→"; margin-left: 8px;
  display: inline-block;
  transition: transform .3s var(--ease-out);
}
.site-card:hover .sc-cta::after { transform: translateX(6px); }

@media (max-width: 820px) {
  .site-card { grid-template-columns: 1fr; }
  .sc-visual { height: 160px; }
}

/* ---------- colophon ---------- */
.colophon {
  padding: clamp(70px, 9vw, 110px) 0;
  background: var(--purple-900);
}
.colophon h2 {
  font-family: var(--font-display); font-weight: 700;
  color: #fff; font-size: clamp(26px, 3.4vw, 36px);
  margin: 0 0 36px;
}
.colo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 4vw, 48px); }
.colo-grid h3 {
  font-size: 13px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .14em; color: var(--gold-300); margin: 0 0 12px;
}
.colo-grid p { color: var(--purple-200); font-size: 15px; margin: 0; }
.colo-grid .mono { background: rgba(122,70,134,.4); color: var(--purple-100); }
@media (max-width: 820px) { .colo-grid { grid-template-columns: 1fr; } }

/* ---------- footer ---------- */
.footer { background: var(--ink); padding: 56px 0; color: var(--purple-200); }
.footer-grid { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.footer-logo { height: 26px; width: auto; margin-bottom: 16px; }
.footer-line { font-size: 14px; color: var(--purple-300); max-width: 44ch; margin: 0; }
.footer-meta { font-size: 13.5px; text-align: right; }
.footer-meta p { margin: 0 0 8px; }
.footer-meta a { color: var(--gold-300); }
@media (max-width: 700px) { .footer-meta { text-align: left; } }

/* reveal */
.site-card { opacity: 0; transform: translateY(20px); }
.site-card.in { opacity: 1; transform: none; transition: opacity .8s var(--ease-out), transform .8s var(--ease-out), box-shadow .35s, border-color .35s; }
.site-card.in:hover { transform: translateY(-5px); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .site-card { opacity: 1; transform: none; }
  .gold-line::after { animation: none; }
}